Description
Polypropylene mesh fiber in polypropylene as raw materials, through
special production craft manufacture, its appearance is fiber
monofilament mutual network of crosslinking structure.
Polypropylene fibres is into the concrete, the mixing process of
lateral connection between fiber monofilament torn by the impact of
the coarse aggregate, forming fiber monofilament, its coarse torn
edges between fiber and concrete has excellent grip of, can be used
for the crack resistance of concrete anti-seepage, enhanced
toughening project.
�
�
|
Fiber type
|
mean web
|
�density
|
0.*1g/cm3
|
|
Equivalent diameter
|
**0 ?m
|
length
|
6?*0?*9?*8?*4mmCan be arbitrary cut
according to user requirements
|
|
Tensile strength
|
?**0MPa
|
Modulus of elasticity
|
?***0MPa
|
|
Elongation at break
|
8?*0%
|
Resistance to acid, alkaline
|
strong
|
|
Melting point
|
**0?**0?
|
Flash point
|
**0?
|
�
As the
secondary reinforcement of concrete material, the sea can high mesh
fiber can greatly improve its crack resistance, impermeability,
resistance to impact, seismic, antifreeze, anti-abrasion, anti
burst resistance, ageing resistance and workability, pumping and
water retention.
- To
prevent the cracks of concrete
- Improve
the permeability resistance of concrete
- Improve
the freezing-thawing resisting performance of concrete
- To
improve the impact resistance of concrete, folding resistance,
fatigue resistance and seismic performance
- Improve
the durability of the concrete and aging resistance
- To
improve the fire performance of concrete
- ?Length options: *9 mm, is generally selected
ordinary concrete shotcrete generally selected *0 mm.
- Dosage design: normally, dosage of 0.9 kg/m3, dosage of bridge
deck waterproof layer 0.9 ~ 1.8 kg/m3, tunnel with sprayed concrete
admixture is 0.9 ~ 1.8 kg/m3.
- Mixing process: first put into rubble. Then input fiber, back
into the sand stirring for 2 minutes, make the fiber fully open.
Then put into cement and water by conventional process until
well-combined. Also can according to the conventional process into
order construction, but batch stirring time should be no less than
four minutes, mix to make the fiber.
- Molding curing: no special requirements, prolong vibrated *0
seconds, plaster should stay when concrete surface passivation on
again after a little, in order to avoid out of the fiber.
- Matters needing attention
- Do not replace structural strengthening material, and shall not
reduce the main structure size. Cannot be used separately to solve
subsidence, mass concrete hydration heat and powerful external
shocks. Not because the use of fiber and reduce the construction
quality management requirements, still should according to relevant
state regulations, carry out the construction and maintenance.
- With sheng technology of polypropylene mesh fiber stored to
prevent sun direct illuminate for a long time.
